$ python fragments/custom_hierarchy.py 
	Traceback (most recent call last):
	  File "fragments/custom_hierarchy.py", line 1, in ?
		tr= IMP.core.HierarchyTraits("my hierarchy")
	NameError: name 'IMP' is not defined

$ python fragments/randomize_rigid_body.py 
	Traceback (most recent call last):
	  File "fragments/randomize_rigid_body.py", line 2, in ?
		rbd= IMP.core.RigidBody(p)
	NameError: name 'IMP' is not defined

$ python test_mc.py 
	EEE
	======================================================================
	ERROR: test montecarlo 1
	----------------------------------------------------------------------
	Traceback (most recent call last):
	  File "test_mc.py", line 46, in test_c1
		(model, opt)= self._setup_opt()
	  File "test_mc.py", line 71, in _setup_opt
		ls= IMP.container.ListSingletonContainer(model.get_particles())
	AttributeError: 'module' object has no attribute 'container'

	======================================================================
	ERROR: test montecarlo 2
	----------------------------------------------------------------------
	Traceback (most recent call last):
	  File "test_mc.py", line 52, in test_c2
		(model, opt)= self._setup_opt()
	  File "test_mc.py", line 71, in _setup_opt
		ls= IMP.container.ListSingletonContainer(model.get_particles())
	AttributeError: 'module' object has no attribute 'container'

	======================================================================
	ERROR: test montecarlo 3
	----------------------------------------------------------------------
	Traceback (most recent call last):
	  File "test_mc.py", line 58, in test_c3
		(model, opt)= self._setup_opt()
	  File "test_mc.py", line 71, in _setup_opt
		ls= IMP.container.ListSingletonContainer(model.get_particles())
	AttributeError: 'module' object has no attribute 'container'

$ python ../imp_examples/structure_from_sequence.py 
	Traceback (most recent call last):
	  File "../imp_examples/structure_from_sequence.py", line 4, in ?
		topology = IMP.atom.CHARMMTopology(IMP.atom.get_all_atom_CHARMM_parameters())
	AttributeError: 'module' object has no attribute 'get_all_atom_CHARMM_parameters'